How to find the phone settings on Android

Modern smartphones are complex computing devices, the characteristics of which directly affect the speed of operation, shooting quality and autonomy. Users are often faced with the need to clarify the exact processor model, amount of RAM or display matrix type, especially when purchasing a used device or selecting accessories. Knowing the real specifications of a gadget helps you avoid disappointment from the inflated stated characteristics of unscrupulous sellers.

The Android operating system provides several built-in diagnostic tools, but they do not always display the full technical picture. In this article we will analyze in detail all the available methods - from the standard settings menu to the use of deep system commands. You will learn how to quickly find information about the hardware of your device without having to contact a service center.

Using the standard settings menu

The easiest and safest way to get basic information about your device is the standard settings menu. The interface may differ slightly depending on the version of Android and the manufacturer's shell (for example, MIUI, One UI or ColorOS), but the logic remains the same. Usually it is enough to go to the section Settings and scroll the list to the very bottom.

Here you will find the item About the phone or About the device. By clicking on it, the system will display the model name, operating system version and build number. To obtain more detailed data, you often need to click on the line Device characteristics or a similar link within this menu. This section usually indicates the amount of internal memory and random access memory (RAM).

However, the standard menu has limitations. It rarely shows the exact processor model, the frequency of its cores, or the actual screen resolution in pixels. Also, the type of battery and its degree of wear are not indicated here. For a superficial check before selling, this is enough, but for a deep analysis, other methods will be required.

⚠️ Attention! In some Chinese firmware versions, the information in the "About Phone" menu can be programmatically replaced. Unscrupulous collectors change system files so that a budget phone is displayed as a flagship model. Always double-check the data with third-party utilities.

Checking through the engineering menu and USSD codes

For a deeper dive into the technical depths of the smartphone, there are special service codes. Entering these combinations in the dialer opens access to hidden diagnostic sections that are not visible to the average user. This is a powerful tool, but requires caution, since changing some parameters may disrupt the operation of the radio module.

The most universal code for devices running pure Android and many custom firmware is ##4636##. After entering the last characters, the menu will open automatically. Here you can see detailed battery usage statistics, Wi-Fi connection information and phone details including IMEI and network type. This method does not require the installation of additional software.

For Samsung devices, the code often works #0#, which runs a full-fledged hardware test. The screen will be divided into buttons to check the display (for dead pixels), sensor, vibration and speakers. This is an ideal way to test the phone before purchasing it in person to make sure that all hardware components are in good working order.

• 📱 Universal code: ##4636## —works on most Pixel, Xiaomi, Motorola devices.
• 🔧 Test equipment: #0# —specific to Samsung, opens the component testing menu.
• 📶 Network information: *#06# —instantly shows the IMEI code required to check the device against the database.

What to do if the codes do not work?

Many manufacturers block access to engineering menus in global firmware versions for security reasons. In this case, try installing the "Engineering Mode" application from the Play Market store, which emulates these commands.

Third-party applications for detailed diagnostics

When the built-in tools are not enough, specialized utilities from Google Play come to the rescue. These applications read information directly from the device's sensors and controllers, providing the most accurate data possible. They are able to show the temperature of the processor cores in real time, the level of battery wear and the exact model of the screen matrix.

One ​​of the most popular tools is CPU-Z. This application displays detailed information about the SoC (System on Chip), including platform name, number of cores, clock speed and manufacturing technology. It also shows data about RAM, including the current frequency and the number of free channels, which is critical for assessing performance.

Another powerful solution is AIDA64. This utility provides a comprehensive report on everything from Linux kernel version to accelerometer and gyroscope data. It is especially useful for comparing stated performance with actual performance. If you doubt the authenticity of a smartphone, checking the data in AIDA64 with the official specifications on the manufacturer’s website will quickly reveal a fake.

Application	Main function	Complexity	Data accuracy
CPU-Z	Info about the processor and RAM	Low	High
AIDA64	Full system diagnostics	Medium	Maximum
Device Info HW	Camera and screen data	High	Professional
3DMark	Performance test (GPU)	Average	Benchmark

Analysis of characteristics via a computer (ADB)

For advanced users with access to a computer, the most reliable method is to use debugging USB and ADB interface (Android Debug Bridge). This method allows you to obtain “raw” data from the system, which cannot be falsified by app methods at the user interface level.

First you need to activate the developer mode. To do this, go to Settings → About phone and click 7 times on the item Build number. After the message “You have become a developer” appears, go to the new section For developers and turn on the toggle switch USB debugging. Connect the phone to the PC with a cable.

Open the command line on your computer in the ADB tools folder and enter the command to display complete information about the device. The system will ask for permission to debug on the smartphone screen - confirm it. After executing the command, you will receive a text log with all the hardware parameters.

adb shell getprop

In the resulting list, look for lines starting with ro.product.model (model), ro.hardware (platform) and ro.bootloader. This method is indispensable when restoring blocked devices or accurately identifying a motherboard revision.

⚠️ Attention! Do not enter ADB commands whose purpose you do not know. Some instructions may erase the data partition (wipe data) or block the bootloader, which will lead to complete loss of information on the phone.

How to check the real amount of memory and battery

One of the most common types of deception in the electronics market is flashing the memory controller. The phone can display 512GB of internal storage, although it physically houses a 32GB chip. When writing files in excess of the real limit, the data begins to be overwritten and is irretrievably lost.

To identify such a fake, it is not enough to look at the settings. It is necessary to use utilities for testing write and read speeds, such as Fake Device Test or DevCheck. These applications try to write a test file that takes up the entire declared volume, and read it back. If reading fails or the speed drops to zero, the memory is fake.

The state of the battery is also often hidden from the user. Unlike the iPhone, Android doesn't always show wear percentage (SOH) in the stock menu. Apps like AccuBattery analyze charging and discharging rates over multiple cycles to calculate the actual capacity of the battery compared to the factory one. This allows you to understand whether it is time to change the battery.

Pay attention to the battery temperature during operation. If during idle or light tasks it exceeds 40-45 degrees, this may indicate a malfunction of the power controller or degradation of the chemical composition of the element. Overheating significantly reduces the service life of any Li-Ion battery.

Frequently asked questions about Android characteristics

Users often ask questions related to interpreting received data or searching for specific information. Below are answers to the most popular queries that will help you better navigate the technical specifications of your gadget.

Why is the available memory less than stated?

Part of the internal memory is reserved for the Android operating system, recovery files and pre-installed manufacturer applications. In addition, the difference arises from differences in calculation: manufacturers consider 1 GB as 1000 MB, and the system as 1024 MB.

How to find the exact model of the screen matrix?

Standard settings rarely show the panel manufacturer. To do this, it is best to use the application Device Info HW or Screen Test. In the "Display" section, the matrix model code will be indicated, by which you can find the manufacturer (Samsung, LG, BOE, etc.).

Is it possible to find out the production date of the phone?

There is usually no direct date in the menu. However, it is possible to decrypt the serial number (S/N) or IMEI. For some brands (for example, Samsung or Huawei) there are online calculators where you can determine the month and year of manufacture by the first digits of the serial number.

Does the Android kernel version affect performance?

The kernel version itself does not guarantee high speed, but new versions optimize work with modern processors and memory types. However, the decisive role is played by the quality of drivers from the chipset manufacturer and shell optimization.

Is it safe to use engineering codes?

Viewing information through codes is safe. The danger comes from the “Equipment test” or “Reset settings” section, where careless pressing can trigger memory formatting or sensor calibration, which is difficult to cancel without special knowledge.